<template>
    <div>
        <!-- 面包屑导航区域 -->
        <el-breadcrumb separator="/">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图区域 -->
        <el-card>
            <el-row>
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" @keyup.enter.native="getGoodsList" @clear="getGoodsList" clearable>
                        <el-button slot="append" icon="el-icon-search" @click="getGoodsList" clearble></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" v-on:click="goAddPage">添加商品</el-button>
                </el-col>
            </el-row>
        </el-card>
        <!-- table表格区域 -->
        <el-table :data="goodslist" border stripe>
            <el-table-column type="index"></el-table-column>
            <el-table-column label="商品名称" prop="goods_name" width="600px"></el-table-column>
            <el-table-column label="商品价格(元)" prop="goods_price" width="90px"></el-table-column>
            <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
            <el-table-column label="创建时间" prop="goods_time" width="140px">
                <template v-slot="scope">
                    {{scope.row.add_time|dataFormat}}

                </template>
            </el-table-column>
            <el-table-column label="操作" width="130px">
                <template v-slot="scope">
                    <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
                    <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)"></el-button>
                </template>
            </el-table-column>

        </el-table>

        <!-- 分页区域 -->
        <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum" :page-sizes="[5, 10,15, 20]" :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper" :total="total" background>
        </el-pagination>
    </div>
</template>

<script>
export default {
    data () {
        return {
            //查询参数对象
            queryInfo: {
                query: '',
                pagenum: 1,
                pagesize: 10
            },
            // 商品列表
            goodslist: [],
            // 总数据条数
            total: 0
        }
    },
    created () {
        this.getGoodsList()
    },
    methods: {
        //根据分页获取对应的商品列表
        async getGoodsList () {
            const { data: res } = await this.$http.get('goods', { params: this.queryInfo })
            if (res.meta.status !== 200) {
                return this.$message.console.error('获取商品列表失败!');
            }
            this.goodslist = res.data.goods
            this.total = res.data.total
        },
        // 最大显示数量发生变化
        handleSizeChange (newSize) {
            this.queryInfo.pagesize = newSize
            this.getGoodsList()
        },
        // 页码值发生变化
        handleCurrentChange (newPage) {
            this.queryInfo.pagenum = newPage
            this.getGoodsList()
        },
        // 根据ID删除商品
        async removeById (id) {
            const confirmResult = await this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(err => err)
            // console.log(confirmResult);
            if (confirmResult === 'cancel') return
            const { data: res } = await this.$http.delete(`goods/${id}`)
            if (res.meta.status !== 200) {
                return this.$message.error('删除失败!');
            }
            this.$message.success('删除成功!')
            this.getGoodsList()
        },
        // 点击按钮添加商品
        goAddPage () {
            this.$router.push('goods/add')
        }
    }
}
</script>

<style lang="less" scoped>
.el-row > .el-col:nth-child(2) {
    margin-left: 15px;
}
</style>